In Reply to: cornhead for 9690 posted by cvf on January 12, 2008 at 13:02:36:

Well they are roughly the same size as an 8780. Don't think they offered anything bigger than a 8 row for them. 12 rows is an awful lot. You have enough threshing room but might run short on the seperation side.

But then again my knowledge of corn isn't all that deep. We grew it for 4 or 5 years and ran a 9600, 9750 and then the last one was the Massey 9790 with an 8 row. It wasn't near enough head for the machine too.